package task1;

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class TestDemo1 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextInt()) { // 注意 while 处理多个 case
            int count = 0;
            int n = in.nextInt();
            int[] arr = new int[n+1];
            for (int i = 0; i < n; i++) {
                arr[i] = in.nextInt();
            }
            boolean flg = true;
            for (int i = 0; i < n; i++) {
                if(arr[i]<arr[i+1]){
                    while(i<n&&arr[i]<arr[i+1]){
                        i++;
                    }
                    count++;
                }else if(arr[i]==arr[i+1]){
                    i++;
                }else {
                    while (i<n&&arr[i]>arr[i+1]){
                        i++;
                    }
                    count++;
                }
            }
            //count++;
            System.out.println(count);
        }
    }
}